Visitors to the Nightmare Fears Factory in Niagara Falls, Canada, are obliged to navigate their way round the supposedly haunted building in total darkness while live actors jump out of them. The Nightmare Fears Factory team have been using hidden cameras to take pictures of their guests' terrified reactions, which they've then posted on the company's Facebook page. And it turns out they're all pretty funny. (Photo by Nightmare Fears Factory)

Vivid colors and bizarre shapes come together in a false-color image that could be an illustration for a fantasy story. This labyrinth of exotic features winds its way along the edge of Russia’s Chaunskaya Bay in northeastern Siberia, seen as a vivid blue half-circle at the bottom of the image Two major rivers, the Chaun and Palyavaam, flow into the bay, which in turn opens into the Arctic Ocean. Ribbon lakes and bogs are present throughout the area, created by depressions left by receding glaciers. (Photo by USGS/NASA)

Hirotoshi Itoh graduated from Tokyo National Fine Arts University in 1982 and later went into his family business as a stonemason. He spent several years working with metal before turning his attention to stones. He utilizes stones found in a river bank near his home, and he creates sculptures that juxtapose the original shape and hardness of the material with surprising humor and texture. You can find more of his work on his Deviant Art page.

“Award-winning photographer Camille Seaman, best known for her earlier work depicting massive polar icebergs, recently turned her lens on another incredible natural phenomenon - storm clouds above the American Midwest. She partnered with experienced storm chasers and began to stalk a particular type of storm cloud – the supercell. On June 22, 2012, in western Nebraska, she encountered an enormous supercell and captured its many faces”. (Photo by Camille Seaman via TheAtlantic)

A neighborhood watch volunteer stands guard on her street on February 9, 2017 in Peronia, Guatemala. Residents of Peronia, south of Guatemala City organized block by block to secure their community after ten of their neighbors in January were killed, they say, for refusing to pay extortion money to gangs. Armed with machetes and sticks, residents take turns each night, baring strangers' entry into their neighborhoods. Violence and poverty continue to drive emigration from Central America to the United States, even as the Trump administration moves to tighten border security. (Photo by John Moore/Getty Images)

Students at the Cuba's National Ballet School (ENB) watch a class from outside the classroom in Havana, Cuba, October 12, 2016. Catherine Conley, the first American full-time student at Cuba's prestigious National Ballet School, hopes to gain an edge back home by learning the powerful Cuban style with its dazzling turns and jumps. (Photo by Alexandre Meneghini/Reuters)